Strengthening of Weak Soil against Liquefaction

liquefactionis a phenomenon in which the stability, strength and hardness of soil is relapseby sudden changes in stress or earth quake. due to applied stress, cohesion less saturated or partially saturated soil substantially loses strength and stiffness is also effected. due to that reason, solid ground turns into a liquid-like state. in this paper show that how to change inner property of partially saturated soil or weak soil and turn to try develop strength and stability of soil .we major focused on micro piles which change the properties of weak soil. here we used black cotton soil as a liquefaction soil. black cotton soil mostly available in major part of India. as we know India is one of world largest agricultural country so mostly 80-90 % land in India has used as agricultural and other left part land used for building. road and other extra activities. for the purpose of this study, identify the liquefiable soil profile and increasing strengthening of weak soil by using any extra materials mixing or changing the property of weak soil. in 1999 kocaeli earth quake after this earthquake we have loses may land due to lack of knowledge about liquefaction. after this occurred we realised that if analysed natural land ground than we can decreased losses there. so in this study analysis results are evaluated and the effectiveness of densification is discussed.